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Quest Vitamins LTD,
8 Venture Way,
Aston Science Park,
B7 4AP.

Tel: 0121 359 0056
Fax: 0121 359 0313
Registered in England No. 2530437

Nyctalopia (Night blindness)


Often a dangerous disorder, night blindness results in the inability to see well in the dark or under dim light. It may be a consequence of nutritional deficiency (notably Vitamin A) and may also result from a decreased synthesis of rhodopsin, retinal degeneration, or may be due entirely to a congenital defect.

Night blindness is usually diagnosed when an individual?s Eyes do not readily adjust in a few moments, from daylight, when they enter a dark room.


Bilberry (2)
Ginkgo biloba


Coenzyme Q10
Vitamin A (3)
Zinc (1)


1. Anonymous. Zinc-responsive night blindness in sickle cell anemia. Nutr Rev 1982;40:175-77.
2. Sala D, Rolando M, et al. Effect of anthocyanosides on visual performance at low illumination. Minerva Oftalmol 1979;21:283-85.
3. Walt RP, et al: Vitamin A treatment for night blindness in primary biliary Cirrhosis, British Medical Journal, 288(6423), Apr 1984, p 1030-1031.


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